/Engine/Plugins/Runtime/StateTree/Source/StateTreeModule/Public/StateTreeTypes.h
Transitions trigger.
enum EStateTreeTransitionTrigger { None = 0, OnStateCompleted = 0x1 | 0x2, OnStateSucceeded = 0x1, OnStateFailed = 0x2, OnTick = 0x4, OnEvent = 0x8, MAX, }